Goodwill (Details 4)	3 Months Ended
Dec. 31, 2019
Risk adjusted capital cost \| Minimum
Goodwill [Line Items]
Rates used to value goodwill	4.00%
Risk adjusted capital cost \| Maximum
Goodwill [Line Items]
Rates used to value goodwill	9.00%
Long-term growth rate \| Minimum
Goodwill [Line Items]
Rates used to value goodwill	2.00%
Long-term growth rate \| Maximum
Goodwill [Line Items]
Rates used to value goodwill	3.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Period Type:	duration